抄録
The effects of acetate and nitrite on the performance of sequencing batch reactors (SBRs) employing an anaerobic/aerobic/anoxic (AOA) process were investigated. Three types of SBR operations were used: sodium acetate addition at the start of anoxic condition for heterotrophic denitrification (Type 1); sodium acetate addition at the start of aerobic condition for anoxic phosphate removal by denitrifying phosphate-accumulating organisms (DNPAOs) (Type 2: conventional AOA process); and nitrite addition at the start of aerobic condition for inhibition of phosphate-accumulating organisms (PAOs) (Type 3). A track experiment shows that Type 2 led to the best performance of SBRs among the three types. An analysis by fluorescence in situ hybridization (FISH) revealed that nitrite addition decreased the ratio of PAOs with a decrease in phosphorus removal efficiency. The fraction of DNPAOs in Type 2 was the highest at 13%, indicating that Type 2 is suitable for the simultaneous nitrogen and phosphorus removal in the AOA process.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 305-313 |
| ページ数 | 9 |
| ジャーナル | Bioprocess and Biosystems Engineering |
| 巻 | 29 |
| 発行部数 | 5-6 |
| DOI | |
| 出版物ステータス | Published - 2006 12 |
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ASJC Scopus subject areas
- Chemical Engineering(all)
- Applied Microbiology and Biotechnology
- Biotechnology
- Bioengineering
- Environmental Science (miscellaneous)
これを引用
Effects of acetate and nitrite addition on fraction of denitrifying phosphate-accumulating organisms and nutrient removal efficiency in anaerobic/aerobic/anoxic process. / Soejima, Koichi; Oki, Kazuma; Terada, Akihiko; Tsuneda, Satoshi; Hirata, Akira.
：: Bioprocess and Biosystems Engineering, 巻 29, 番号 5-6, 12.2006, p. 305-313.研究成果: Article
}
TY - JOUR
T1 - Effects of acetate and nitrite addition on fraction of denitrifying phosphate-accumulating organisms and nutrient removal efficiency in anaerobic/aerobic/anoxic process
AU - Soejima, Koichi
AU - Oki, Kazuma
AU - Terada, Akihiko
AU - Tsuneda, Satoshi
AU - Hirata, Akira
PY - 2006/12
Y1 - 2006/12
N2 - The effects of acetate and nitrite on the performance of sequencing batch reactors (SBRs) employing an anaerobic/aerobic/anoxic (AOA) process were investigated. Three types of SBR operations were used: sodium acetate addition at the start of anoxic condition for heterotrophic denitrification (Type 1); sodium acetate addition at the start of aerobic condition for anoxic phosphate removal by denitrifying phosphate-accumulating organisms (DNPAOs) (Type 2: conventional AOA process); and nitrite addition at the start of aerobic condition for inhibition of phosphate-accumulating organisms (PAOs) (Type 3). A track experiment shows that Type 2 led to the best performance of SBRs among the three types. An analysis by fluorescence in situ hybridization (FISH) revealed that nitrite addition decreased the ratio of PAOs with a decrease in phosphorus removal efficiency. The fraction of DNPAOs in Type 2 was the highest at 13%, indicating that Type 2 is suitable for the simultaneous nitrogen and phosphorus removal in the AOA process.
AB - The effects of acetate and nitrite on the performance of sequencing batch reactors (SBRs) employing an anaerobic/aerobic/anoxic (AOA) process were investigated. Three types of SBR operations were used: sodium acetate addition at the start of anoxic condition for heterotrophic denitrification (Type 1); sodium acetate addition at the start of aerobic condition for anoxic phosphate removal by denitrifying phosphate-accumulating organisms (DNPAOs) (Type 2: conventional AOA process); and nitrite addition at the start of aerobic condition for inhibition of phosphate-accumulating organisms (PAOs) (Type 3). A track experiment shows that Type 2 led to the best performance of SBRs among the three types. An analysis by fluorescence in situ hybridization (FISH) revealed that nitrite addition decreased the ratio of PAOs with a decrease in phosphorus removal efficiency. The fraction of DNPAOs in Type 2 was the highest at 13%, indicating that Type 2 is suitable for the simultaneous nitrogen and phosphorus removal in the AOA process.
KW - Anaerobic/aerobic/anoxic process (AOA process)
KW - Denitrifying phosphate-accumulating organisms (DNPAOs)
KW - Enhanced biological phosphorus removal (EBPR)
KW - Glycogen-accumulating organisms (GAOs)
KW - Sequencing batch reactor (SBR)
UR - http://www.scopus.com/inward/record.url?scp=33751266939&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33751266939&partnerID=8YFLogxK
U2 - 10.1007/s00449-006-0079-7
DO - 10.1007/s00449-006-0079-7
M3 - Article
VL - 29
SP - 305
EP - 313
JO - Bioprocess and Biosystems Engineering
JF - Bioprocess and Biosystems Engineering
SN - 1615-7591
IS - 5-6
ER -